| 摘要 |
The present invention relates to a pipe, which is inserted into a geothermal well and formed such that a heat transfer medium flows along the geothermal well, and comprises: a pipe module extended from the ground to the lower part of the geothermal well, formed with a diameter, which is relatively smaller than that of the geothermal well, such that the pipe module is disposed to be spaced from the inner surface of the geothermal well, and having at least one through-hole formed at one side thereof and through which the inside thereof and the outside thereof communicate with each other; and a valve module for selectively opening and closing the through-holes of the pipe module. |
